授課教授:謝平城 指導教授:蕭宇伸   姓名:王偉龍  日期: 0513

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Geodetic Geodetic and and geophysical geophysical results results from from a a Taiwan Taiwan airborne airborne gravity gravity survey: survey: Data Data reduction reduction and and accuracy accuracy assessment assessment 授授授授 授授授 授授授授 授授授 授授 授授授 授授0513 1

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Geodetic and geophysical results from a Taiwan airborne gravity survey: Data reduction and accuracy assessment. 授課教授:謝平城 指導教授:蕭宇伸   姓名:王偉龍  日期: 0513. 大綱. 前言 研究方法 精度分析 研究成果 結論. 台灣本島高山居多,四周環海,此為重力測量工作遲遲未有重大發展的因素之一。 特別是高山地區,由於此區重力不易以陸測方式獲得,故造成重力資料極度缺乏,這對計算精準的大地起伏與高程基準非常不利。 - PowerPoint PPT Presentation

Transcript of 授課教授:謝平城 指導教授:蕭宇伸   姓名:王偉龍  日期: 0513

  • Geodetic and geophysical results from a Taiwan airborne gravity survey: Data reduction and accuracy assessment0513

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  • 2004520055KMS()*

  • 8 GPS (YMSM)(PKGM)(KDNM)(FLNM)(TMAM)(KMNM)(MZUM)(SNAM)(CCK)

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  • 644.5222010-56-30

    Trimble 5700 GPS 1Hz5156 300

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  • GPSurvey()(YMSM)

    Bernese(Root-Mean-Square)*

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    Altitude (km) (km)0.50.86211.10221.57732.04742.51352.91163.36373.81384.261

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  • GGM02C EGM 96

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  • (altimetry)(weighted constraint method)

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    CaseMaxMinMeanRmsBefore adjustment13.97-13.33-0.244.92after adjustment10.07-9.170.002.88

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    RMS

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  • Line26Line55

    75Line26Line5575Line26Line55

    150s Line263 mgal*

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  • GGM02C EGM 96

    (Fourier transform)(least-square collocationLSC)

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  • Bouguer

    2.67g/cmDTM*

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  • GPS1023 mgalFourier106

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  • End

    Thanks for listening*

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  • dt

    dT

    dtdT

    Cycle Slip*

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  • 1 mGal=0.00001 m/s29.8 m/s21 mGal*

  • () 1. (mean sea level) 2. (geoid) *